Combined fish-plate and bolt



(NoModel.)

J. AYER.

Combined Fish Plate and Bult.

No. 239,594. Patented' April 5,1881.

UNITED STATES PATENT OFFICE.

JOHN M. AYER, OF CHICAGO, ILLINOIS.

COMBINED FISH-PLATE AND BOLT.

SPECIFICATION forming part of Letters Patent No. 239,594, dated April 5, 1881.

Application filed December 22, 1880.

zontal section ot' the same, taken on the line 2 2, Fig. l; Fig. 3, a side elevation ot' a fish-plate before the bolt is struck out; and Fig. 4, a cross-section ou the line 4 4, Fig. l. i i

My invention relates to joints for railwayrails in particular, but is applicable also for all analogous purposes. The great difficulty to be overcome with such joints, as is well known, is to secure the bolt with such lrm ness as to provide against its turning or moving and starting the nut, when in place, through the jarring and pounding of the rails caused by the moving trains.

My object is to overcome this difficulty; and to this end my invention consists in forming the angle-bar or ijsh-plate and bolts in one piece, the bolts being formed from the body of the plate by cutting through the latter and bending out the portion so cut, all as hereinafter .more fully set forth.

The manner in which I carry out m y in vention is clearly illust-rated in the accompanying drawings, and is as follows:

A A are adjacent rails of a railwaytrack, havingbolt-holes through them, as usual, which bolt-holes may be either square, oval, round, or of any other desired form.

B is the male angle-bar or fish-plate, as the case may be, and C C the bolts formed by cutting through the said plate three sides of a rectangle of suitable length for the bolt, asindicated by dotted lines in Fig. 3, stamping out the portion so cut to a position perpendicular (No model.)

to the plate, and screw-threadin g its outer end to receive the nut. These bolts may be either square, oval, round, or any other form corresponding to the shape ofthe holes in the rails.

B is the female fish-plate or angle-bar, provided with holes to correspond with the position ot' the bolts C and bolt-holes in the rails, and I) the nuts screwing upon the bolts, as usual.

It will be seen that with my construction the turning ot' the bolt in the rail is an impossibility,vsince it forms a part of the fish-plate or angie-bar itself, and that such turning or starting is equally impossible, whether the bolt is made square, round, or of any other form. This being the case, the necessity for nut-locks is done away with, though they may still be used, ofcourse, it' desired. Moreover, my bolt possesses, in point of neconomy of manufacture, great advantages over every device for the same purpose heretofore contrived, since it takes less metal than the old forms of separate bolts and plates, and may be made comi plete in one continuous operation.

What I claim as new, and desire to secure by Letters Patent, isy 1. rEhe combined fish-plate or angle-bar and bolts herein described, each bolt being formed by cutting through said bar three sides of a rectangle of suitable length for the bolt, stamping out the portion so cut to a position perpendicular to the, bar, and screw-threading its outer end, as set forth.

2. The combination of the plate B, bolts C, each formed by cutting through. said plate three sides of a rectangle, bending out the portion so cut, and screw-threading its outer end, plate B, provided with holes for the passage of said bolts, and nuts D, substantially as described, and for the purpose set forth. JOHN M. AYER. In presence of P. G. DYRENEOR'IH, J. CoRRIeAN. 

